There are a few things you need to keep in mind:
- Keep the device on external power!
A wall charger is best choice.
I can't stress this enough, if you lose power while the eMMC is doing one of its read/erase/re-program cycles internally - the device will self-destruct.
- The flash memory as used on the Kindle requires a special set of options for its format.
The Windows formatter does not support those options, so don't use it. You will only make your problems worse.
- The storage area of a flash memory is not organized the same as that of a spinning rust storage device.
There is no relationship between the erase block location and the storage block order.
The relationship changes with every "write" (flash devices do not support a "write" operation - their internal micro-controller is faking it).
- The boot-up procedure of the Kindle will detect if the USB storage area is formatted, and if not, format it (with the proper options).
Use this feature, you have two choices:
- Select 'format USB storage' (or whatever similar menu entry you have) from the diags menu.
Keep it on external power and repeat until no errors exist (the eMMC's internal micro-controller will deal with blocks that fail ecc checks).
You have to repeat this because you only have access to a limited number of erase blocks and the entire set of internal erase blocks have to be cycled.
Did I mention? Keep it on external power ALL OF THE TIME.
- Use special Window's tools to access the raw storage area of USB storage (a very poor choice) or run a Linux LiveCD on your PC so that you can corrupt the USB storage area format and then let the device re-boot (and re-format the area).
Directions for forcing a USB storage re-build can be found in the original de-bricking threads.
- Keep the Kindle on external power!
You will probably find that all of this is a waste of time.
Most likely, you now have a used touch screen for sale.
